RESISTOR THICK FILM POWER 4 OHM 50W ; RESISTOR THICK FILM POWER 4 OHM 50W 1%; Product Range:BOURNS - PWR221 Series; Resistance:4ohm; Power Rating:30W; Resistance Tolerance:± 1%; Resistor Case Style:TO-221; Resistor Element Type:Thick Film; Voltage Rating:-